| /* |
| * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.tools.jaotc.binformat.elf; |
| |
| import java.nio.ByteOrder; |
| import jdk.tools.jaotc.binformat.elf.Elf.Elf64_Ehdr; |
| |
| /** |
| * Class that abstracts MACH-O target details. |
| * |
| */ |
| final class ElfTargetInfo { |
| /** |
| * Target architecture. |
| */ |
| private static final char arch; |
| |
| /** |
| * Architecture endian-ness. |
| */ |
| private static final int endian = Elf64_Ehdr.ELFDATA2LSB; |
| |
| /** |
| * Target OS string. |
| */ |
| private static String osName; |
| |
| static { |
| // Find the target arch details |
| String archStr = System.getProperty("os.arch").toLowerCase(); |
| if (ByteOrder.nativeOrder() != ByteOrder.LITTLE_ENDIAN) { |
| System.out.println("Only Little Endian byte order supported!"); |
| } |
| |
| if (archStr.equals("amd64") || archStr.equals("x86_64")) { |
| arch = Elf64_Ehdr.EM_X86_64; |
| } else if (archStr.equals("aarch64")) { |
| arch = Elf64_Ehdr.EM_AARCH64; |
| } else { |
| System.out.println("Unsupported architecture " + archStr); |
| arch = Elf64_Ehdr.EM_NONE; |
| } |
| |
| osName = System.getProperty("os.name").toLowerCase(); |
| if (!osName.equals("linux") && !osName.equals("sunos")) { |
| System.out.println("Unsupported Operating System " + osName); |
| osName = "Unknown"; |
| } |
| } |
| |
| static char getElfArch() { |
| return arch; |
| } |
| |
| static int getElfEndian() { |
| return endian; |
| } |
| |
| static String getOsName() { |
| return osName; |
| } |
| } |